//The MIT License (MIT)
//
//Copyright (c) 2018 dote
//
//Permission is hereby granted, free of charge, to any person obtaining a copy of
//this software and associated documentation files (the "Software"), to deal in
//the Software without restriction, including without limitation the rights to
//use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
//the Software, and to permit persons to whom the Software is furnished to do so,
//subject to the following conditions:
//
//The above copyright notice and this permission notice shall be included in all
//copies or substantial portions of the Software.
//
//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
//FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
//COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
//IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
//CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

package com.github.dote.mio.util;

import com.github.dote.mio.client.IOClient;
import io.netty.channel.Channel;
import io.netty.util.Attribute;
import io.netty.util.AttributeKey;

import java.net.InetSocketAddress;

public class ChannelUtil {

    private static AttributeKey<IOClient> CLIENT_KEY = AttributeKey.valueOf("io-client");

    public static boolean addChannelClient(Channel channel, IOClient client) {
        Attribute<IOClient> clientAttr = channel.attr(CLIENT_KEY);
        return clientAttr.compareAndSet(null, client);
    }

    public static IOClient getClientBy(Channel channel) {
        Attribute<IOClient> clientAttr = channel.attr(CLIENT_KEY);
        return clientAttr.get() ;
    }

    public static String getIp(Channel channel) {
        return ((InetSocketAddress)channel.remoteAddress()).getAddress().toString().substring(1);
    }

    public static  String getId(Channel channel){
        return channel.id().asShortText();
    }
}
